Same boat as you, I have a Late 2011 model, with the extended warranty, burnt through one motherboard because of the silly heating issues, but even that after ~

Same boat as you, I have a Late 2011 model, with the extended warranty, burnt through one motherboard because of the silly heating issues, but even that after ~3 years of use, the month before the warranty expired. New one has been working just fine for the past 1 year. I've stuck more RAM in the machine over the past 2 years, but I really want a UHD+ display now, however I can't find anything which fits my needs :( So I think I'm going to stick to my MBP 2011 for now.